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Ground roast coffee tablet

a coffee tablet and ground roast technology, applied in the field of ground roast coffee tablets, can solve the problems of difficult to change the strength of brewed coffee, difficult to determine the correct dose (amount) of coffee to use for brewing pots of different sizes, and inability to brew one, or only a few,

Active Publication Date: 2014-08-21
THE FOLGERS COFFEE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a coffee tablet that contains at least 91% ground roast coffee and a small amount of instant coffee. This tablet has improved mechanical properties, such as better binding strength, easier disintegration, and better brewing efficiency. The amount of coffee solids extracted from the tablet is determined by the amount of coffee brewed in a certain way.

Problems solved by technology

Because of differences in flavor strength among different coffees, as well as variations in personal taste, consumers may find it difficult to determine the correct dose (amount) of coffee to use for brewing pots of different sizes.
However, this approach cannot be used for brewing one, or only a few, servings of coffee, as the consumer is required to make the amount of servings for which the filter pack is designed.
In addition, it is difficult to change the strength of the brewed coffee.
They are also limited to making a single cup at a time, which limits their usefulness in making larger amounts of brewed coffee.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

working examples

[0126]In order to more thoroughly describe this invention, the following working examples are presented.

[0127]In all of the working examples below, percent brew solids was calculated using a recognized correlation between the percent brew solids of the brewed coffee product and the refractive index of the brewed coffee product, with percent brew solids being calculated as (549.209×RI)−731.575 (at a temperature basis of 20° C.). The total brew solids was then determined by multiplying the percent brew solids by the mass of brewed coffee product, and the percent yield was calculated by dividing the total extracted brew solids by the total mass of coffee placed in the brewer (multiplied by 100).

[0128]In the working examples presented in co-pending U.S. Provisional Patent Application Ser. No. 61 / 168,027, filed on Apr. 9, 2009 and entitled GROUND ROAST COFFEE TABLET (the entire disclosure of which is incorporated herein by reference), the calculated correlation between refractive index a...

example 1

Pre-Compression

[0129]Brazilian arabica coffee beans were roasted and ground. This ground roast coffee had a Hunter L-color of 17.9, a bulk density of 0.294 g / cm3 and a mean particle size of 885 microns. The ground roast coffee so made was formed into cylindrical tablets containing ˜2.65 gms ground roast coffee (moisture content 4.75%) and having a diameter of about 24 to 24.5 mm by means of a Fette Model 2200SE multiple station tabletting machine operating at a rate of 90,000 tablets per hour (over 3000 tablets per hour per station and a dwell time of ˜14 millisecond) under different conditions in which the compaction force in the main or primary compactions step was held constant but the compaction force in pre-compression step was varied.

[0130]The hardness of the tablets so made was determined using a Varian VK200 Tablet Hardness tester set in the N (Newton) mode, while the friability of the tablets obtained using a Varian Friabilator having a dual chamber drum by rotating 25 gram...

example 2

Pre-Compression

[0135]Example 1 was repeated using a coffee comprising a mixture of arabica and robusta coffee beans. The ground roast coffee so made had a bulk density of 0.28 g / cm3 prior to compaction with a mean particle size of 720 microns. The tablets had a moisture content of about 4.7%. Tablet mass was about 2.45 grains and 10 tablets were brewed.

[0136]The results obtained are set forth in the following Table 2:

TABLE 2Example 2-Test Conditions and ResultsInitialFinalTabletComp,Comp,Mass,%Hardness,density,%YieldkNkNgFriabilityNg / cm3YieldRatioAbsorbAbs / g5502.4420.7300.8929.41.161.9350.08019.949.92.402.047.10.9729.61.171.9040.07920.5512.462.446.70.9729.31.161.9380.07930.350.62.466.146.40.9828.51.131.9510.07940.250.22.456.640.80.9828.21.111.9390.080

[0137]As can be seen from Table 2, increasing the ratio of the forces used in the pre-compression and main compression steps dramatically reduced friability, while increasing hardness. As in Example 1, the Yield Ratio for each experimen...

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PUM

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Abstract

A ground roast coffee tablet which is capable of being brewed in a conventional automatic drip coffee maker, and which exhibits sufficient strength to withstand all aspects of manufacture, handling, packaging, transport without breakage but also readily disintegrates when contacted with hot water during brewing, is made by subjecting conventional ground, roasted coffee to a multi-step compaction process in which at least two compression steps are carried out in the same compaction die.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. application Ser. No. 12 / 753,332, filed Apr. 2, 2010, which claims priority to U.S. Provisional Patent Application Ser. No. 61 / 168,027, filed Apr. 9, 2009, and U.S. Provisional Patent Application Ser. No. 61 / 318,028, filed Mar. 26, 2010, the entire disclosures of both of which are fully incorporated herein by reference.BACKGROUND[0002]Automatic Drip Coffee makers (“ADCs”) are designed for processing “ground roast coffee” or “coffee,” i.e., granulated coffee obtained by grinding previously roasted coffee beans. Because of differences in flavor strength among different coffees, as well as variations in personal taste, consumers may find it difficult to determine the correct dose (amount) of coffee to use for brewing pots of different sizes.[0003]To deal with this problem, a number of products have been introduced in which the coffee is provided in standardized doses. For example, filter packs in whi...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A23F5/12
CPCA23F2200/00A23F5/125A23F5/385
Inventor YOUNG, JERRY DOUGLAS
Owner THE FOLGERS COFFEE